/Engine/Source/Editor/BlueprintGraph/Classes/K2Node_CallFunction.h
Helper function for searching aUFunctionfor the names of requires pins/params:
static [TSet](API\Runtime\Core\Containers\TSet)< [FName](API\Runtime\Core\UObject\FName) > GetRequiredParamNames ( const [UFunction](API\Runtime\CoreUObject\UObject\UFunction) * ForFunction )